Strange symptoms in platy

This is a discussion on Strange symptoms in platy within the Tropical Fish Diseases forums, part of the Freshwater Fish and Aquariums category; -->
1. Tank size: 1g (I have VERY limited space in my apt)
2. Water parameters
pH: 7.6
3. Tank at room temp.
4. Freshwater
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10. a. Lighting schedule? What lights are used?
b. Any sunlight exposure? How long?
Natural light for about 8 hours a day. No direct sunlight exposure.

11. a. Water change schedule?
b. Volume of water changed?
c. Well water, tap water, RO water?
d. Water conditioner used?
e. Frequency of gravel/sand (if any) vacuumed?
I change the water once a week. 100% water change, and clean plant, house and gravel.

12. Foods?
How often are they fed?
Flakes, once a day...I tried feeding him mini pellets but he stopped heating.

13. a. Any abnormal signs/symptoms?
b. Appearance of poop?
c. Appearance of gills?
Not eating, not pooping. Small signs of tail rot, slightly bloated, scales beginning to seem more raised. Small loss of balance (does "handstands" on bottom of water, and swims mostly on top)

Probably a host of problems caused by no filtration (ammonia/nitrite poisoning) Too small a tank, no space for the bacteria to grow (related to nitrifying bacteria) and no heater (platies need warm water, close to 77F)

As far as the filtration problem, live plants could help. Airstones can also help fish recover from a lot of problems.